package com.example.oauth2.controller;

import io.jsonwebtoken.Jwts;
import org.springframework.security.core.Authentication;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import java.nio.charset.StandardCharsets;

@RestController
@RequestMapping("/user")
public class UserController {
    /**
     * @description: 获取当前用户
     */
    @PostMapping("/getCurrentUser")
    public Object getCurrentUser(Authentication authentication) {
        System.out.println("进来了哦~");
        return authentication.getPrincipal();
    }

    /**
     * @description: 解析JWT
     */
    @RequestMapping("getCurrentUser1")
    public Object getCurrentUser1(Authentication authentication, HttpServletRequest request) {
        String head = request.getHeader("Authorization");
        String token = head.substring(head.indexOf("bearer") + 7);
        return Jwts.parser().setSigningKey("test_key".getBytes(StandardCharsets.UTF_8))
                .parseClaimsJws(token).getBody();
    }
}
